Phase-matching control of high-order harmonic generation in a two-color laser field


Autoria(s): Peng Yan; Yang Xuan; 曾和平; 李儒新; 徐至展
Data(s)

2007

Resumo

The phase-matching condition of high-order harmonic generation driven by intense few-cycle pulses could be controlled by adding second-harmonic pulses to change the ionization fraction of the gaseous medium. The harmonic generation efficiency could be improved by moving the phase-matching point with an all-optical control of the ionization fraction or a proper change of the confocal parameter. A specific order of harmonics could be easily controlled to reach phase matching at a fixed higher gas pressure by adding second-harmonic pulses with a suitable intensity. Such an all-optical phase-matching control was demonstrated to be dependent upon the temporal delay between the fundamental-wave and second harmonic pulses.

Identificador

http://ir.siom.ac.cn/handle/181231/1034

http://www.irgrid.ac.cn/handle/1471x/9871

Idioma(s)

英语

Fonte

Peng Yan;Yang Xuan;曾和平;李儒新;徐至展.,Phys. Rev. A,2007,76(6):63823-

Palavras-Chave #EFFICIENT #PHYSICS #PULSES #LIGHT
Tipo

期刊论文